Explosive-engine.



P.S.THOBNLEY.

EXPLOSIVB ENGINE.

APPLIOATION FILED SEPT.11,1912. 1,096,968. Pa ented May 19, 1914.

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/4 /Z Inventor Attorneys Witnesses COLUMBIA PMNDGIIAPII c0, WASHINGTO D- C.

F. S. THORNLEY.

EXPLOSIVE ENGINE.

APPLICATION FILED SEPT.11,1912.

1,096,968. Patented May 19, 1914.

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/f L u 5 /4 Witnesses Inventor by W I Attbrneys FREDERIC S. THORNLEY, OF CLARION, IOWA.

EXPLOSIVE-ENGINE.

Specification of Letters Patent.

Patented May 19, 1914.

Application filed September 11, 1912. Serial No. 719,880.

0 all who/rt it may concern Be it known that I, FRnnnRIo S. THORN- LEY, a citizen of the United States, residing at Clarion, in the county of WVright and State of Iowa, have invented a new and useful Explosive-Engine, of which the following is a specification.

The present invention relates to improvements in explosive engines.

The main object of the present invention is to construct an explosive engine in units of two cylinders, each cylinder being provided with individual intake and exhaust ports, and so arranged that a single rotary valve will control the intake ports and the exhaust ports, respectively, of the two cylinders, there being two such rotary valves to each pair of cylinders.

Another and important object of the pres ent invention is to control the two rotary valves from the crank shaft instead of through a counter shaft, and so time the operation of the valves as to produce a fourcycle engine.

A still further object of the invention is to arrange the valve chambers so that they open upwardly to permit ready access to the valves by simply removing the head of the twin cylinders, the valves having open upper ends which are sealed by the engine head.

A still further object of the present invention, is the provision of an engine, in which the valves are cylindrical and hollow and slip inwardly from the upper end of the engine, and are held seated by gravity and the engine head, thus rendering the remova bility for repairs and cleaning easy.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the comblnation and arrangement of parts and in the details of constructionhereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without cleparting from the spirit of the invention.

In the drawings :Figure 1 is a longitudinal section through a twin unit of the present engine. Fig. 2 is a section taken on line 22 of Fig. 1. Fig. 3is a sectiontaken on line 3-3 of Fig. 2. Fig. l is a perspective view of one of the rotary valves per 86. Figs. 5 and 6 are cross sections, respectively,

thrl-ough the lower and upper ports of the va ve.

Referring to the drawings, the numeral 1 designates the base of the engine, here shown only as a two cylinder engine, and carrying the two or twin cylinders 2 and 3, which are cast en bloc, and provided with the water jacket 4. Mounted in the respective cylinders are the power pistons 5 and 6, having their respective piston rods 7 and 8 connected to the cranks 9 and 10, respectively of the crank shaft 11.

The other details will be described, starting with the intake side of the motor, and include the carbureted air supply manifold 12, which is in communication through the port 13 with the lower end of the intake valve casing or chamber 14:, which is cylindrical in cross-section, and is cast or formed with the'upper ends adjacent to the meeting portions of the two cylinders. The intake valve 15, is provided with a solid disk lower end 16 having the concentrically disposed angular socket 17, and this valve is removabl y mounted from above in the chamber l l, so that its socket 17 will seat upon the angular or squared upper end of the actuating shaft or rod 18. The valve is further provided with the lower inlet port 19 formed in its wall, and with the elongated outlet port 20, of lesser width than the inlet port, and opening through the top end of the valve, and at a point almost opposite to the inlet port.

The port 19 of the valve is disposed for registration at the proper time with the intake port 13, the carbureted air being drawn upwardly through the hollow portion of the valve and through the port 20 at the proper time into either intake port 22 or 22, of the respective explosive chambers O or C, of the respective cylinders 2 or 3.

The respective cylinders are provided with the respective exhaust ports 23 and 23, which lead into the upper end of the exhaust valve casing or chamber 24, the valve 25 therewithin being constructed similarly to the intake valve 15, only that the upper port 26 is the inlet port of this valve, while the lower port 27 is its outlet or exhaust port. The casing 24 is provided with the outlet or exhaust port 28 in its lower end to discharge the burnt gases into the exhaust manifold 29. The valve 25 is provided with the socket 17 corresponding to the socket 17 of the intake valve 15, and this socket fits upon the upper squared end of the actuating rod or shaft 33, disposed at the opposite side of the engine to the shaft 18. The shafts l8 and 33 are incased in the vertical casings 34 and 35 respectively, said casing being cast or otherwise made a part of the main cast ing of the engine.

Disposed within the base 1 at opposite ery is so formed that when rotated in the direction of the arrow, Fig. 3, the two shafts l8 and 33 are rotated; and as the gear 40 is onehalf the diameter of the respective gears 38 and 39, said valves are rotated to control the supply and exhaust of the carbureted air and burnt gases to and from the chambers C and C, thus producing a four-cycle explosive motor with the least possible mechanism, and with valves that are readily and easily accessible, by simply removing the cylinder and valve casings head 30', one head being sufficient for both cylinders 2 and 3, and both valve casings l t and 24. A spark plug 31 is disposed in the head above each cylinder, and the operation of the same is timed by well known mechanisms.

Each valve is provided with a circumferentially disposed packing ring 21, which preventsleakage of the gases exteriorly of the valve.

It is evident from the foregoing that an exceedingly simple and inexpensive fourcycle explosive engine is produced, and that by reason of the arrangement of valve structure and operating mechanism, the crank shaft is directly connected to operate the valves, and that'further as the valves are mounted in their individual casings and for easy removal or insertion, it is evident that the same are easily accessible without the necessity of disarranging the power pistons and other elements.

Although only one twin cylinder element or unit is herein shown and described, it is evident that the engine may be increased in size by adding various numbers of these units, and still be within the scope of the invention. 7

What is claimed, is p 1. An explosive engine, having two cylinders, each provided with an intake and an exhaust port, the intake ports of both cylinders being upon the same side while the exhaust ports are upon thesame, but opposite, side to the intake ports, a vertically disposed rotary valve with two ports, one of which ports is'for controlling both intake ports, an intake manifold in communication with the remaining port of the valve, a similar valve for controlling both exhaust ports, a power piston in each cylinder, a crank shaft operably connected to both pistons, and means carried by the crank shaft and operably connected to both valves to actuate the valves. 7

2. An explosive engine, having two cylinders open at their upper ends, each cylinder being provided with an intake and an exhaust port, the said ports being disposed to open near the upper ends of the cylinders, two upwardly openingvalve casings carried by the cylinders, one upon each side, the two intake ports being in communicationwith one valve casing while the two exhaust ports are in communication with the other valve casing, a hollow cylindrical rotary valve insertible in each casing through the open end thereof and provided with an inlet and outlet port, the upper end of the valve being open asingle head closing the cylinders and valve casings andcthe upper open end of thevalves, a power piston in each cylinder, a crank shaft operably connected to both pistons,- and cooperable means connected to the crank shaftand both valves for rotating the valves in timed relation. v

3. An explosive eng1ne, having two cyl1nders open at their upper ends, each cylinder being provided with an intake and exhaust port, the respective intake and exhaust ports being, upon the same side of the engine, two open ended valve casings in communication with each two intake ports and each two exhaust ports respectively, an open end cylindrical rotary valve insertible through the open end of and within each valve casing, each valve being providedwith an inlet and an outlet port, a head closing the open ends of the two cylinders and both valve casings and valves, a power piston in each cylinder, a crank shaft operably connected to the pistons, two vertical shafts operably connected to the respective valves, a gear carried by the crank shaft, and a gear upon the lower end of each vertical shaft, said last gears meshing at diametrically opposite points with the gear of the crank shaft.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

FREDERIO s. THORNLEY.

Vitnesses FLOYD P.. ST. CLAIR, A. L. CRowE.

Copies of this patent may be obtainedior five cents each, by addressing the Commissioner of'Iatents,

Washington, I). C. 

